Answer:
Both Jo and Liam are correct
Explanations:
From Jo's equation:
sin 40°=BC 62
Note: sin 40° = 0.64
0.64 = 62 BC
To find BC, divide both sides by 62
From Liam's equation:
cos 50°=BC62
Note: cos 50° = 0.64
0.64 = 62 BC
To find BC, divide both sides by 62
Both Jo and Liam are correct because when both equations are used, the same value of BC is gotten.